Save application positions when switching monitor configurations.

I've run into an annoying problem... Whenever I disconnect my external monitor, that when when I reconnect it my applications have all been moved it seems. Is there some way to save an arrangement for each display configuration.

I've attached a screenshot of how I like to keep things arranged on my internal screen while in dual monitor mode. This is the main thing I want to be able to restore without much hassle. Can anyone think of a way to do it?

 

anybody?

 

I haven't found anything yet either.

I have found that you can move and resize windows with applescript commands. With that in mind I'd like to create a simple program which can move selected windows to a desired location them and resize them to the desired size. I think this would meet my needs.